Papers by date

List papers first submitted between two dates, with arXiv metadata and abstracts, from /papers.json or the MCP search_papers tool.

/papers.json lists papers whose first version was submitted between two dates, newest first. Each entry has arXiv’s metadata and the abstract. It reads the daily metadata harvest only, so it never builds a paper.

curl "https://arxivv.org/papers.json?from=2026-10-20&to=2026-10-21&category=cs.CL"

Parameters

Parameter	Required	Accepts
`from`	Yes	First v1 submission date, `YYYY-MM-DD` (UTC)
`to`	Yes	Last v1 submission date, `YYYY-MM-DD` (UTC), inclusive. Not before `from`
`category`	No	Only papers listed in this arXiv category, e.g. `cs.CL` (any position)
`limit`	No	Papers per page, 1–100. Default 25
`cursor`	No	Taken from the previous page’s `next`; treat it as opaque

A bad parameter returns 400 with code invalid-query.

Response

{
  "schema": 1,
  "from": "2026-10-20",
  "to": "2026-10-21",
  "category": "cs.CL",
  "coverage": { "from": "2026-07-24" },
  "papers": [
    {
      "id": "2610.12345",
      "version": 1,
      "submittedAt": "2026-10-21T13:02:11.000Z",
      "updatedAt": "2026-10-21T13:02:11.000Z",
      "title": "…",
      "authors": "Ada Lovelace, Alan Turing",
      "abstract": "…",
      "categories": ["cs.CL", "cs.LG"],
      "primaryCategory": "cs.CL",
      "license": "http://creativecommons.org/licenses/by/4.0/",
      "comments": "12 pages, 4 figures",
      "withdrawn": false
    }
  ],
  "next": "/papers.json?from=2026-10-20&to=2026-10-21&category=cs.CL&cursor=…"
}

Field	Meaning
`papers[].version`	Latest known version
`papers[].submittedAt`	v1 submission time; this is what `from` and `to` filter on
`papers[].updatedAt`	Submission time of the latest version
`papers[].withdrawn`	The latest version is a withdrawal
`license`, `doi`, `journalRef`, `comments`	Present only when arXiv has them
`coverage.from`	First date the listing is complete for. Earlier ranges hold only papers harvested or requested so far
`next`	Path of the next page; absent on the last page

Use the IDs with any other endpoint: /<id>/metadata.json stays cheap, while /<id>.md or outline.json builds the paper on first request.

Dates and freshness

Dates are v1 submission dates, not announcement dates. arXiv announces a day’s submissions at 20:00 US Eastern, so a paper submitted on Tuesday afternoon usually appears on Wednesday evening.
Revised papers keep their v1 date. They do not reappear when a new version is posted.
The listing updates daily at 04:00 UTC, after arXiv’s OAI-PMH feed carries the night’s announcements. See daily harvest.
Coverage starts on 2026-07-24. Earlier dates will be backfilled later.
Responses are cached for 10 minutes (Cache-Control: public, max-age=600).

From MCP

The search_papers tool takes the same parameters and returns the same JSON, with a cursor field in place of next.